The 100 best performing stocks on the New York Stock Exchange, NYSE Amex, NYSE Arca and Nasdaq National Market, ranked by percentage change, for the fourth quarter of 2010. All issues trading below $2 at the beginning of the quarter are excluded; only stocks that were listed on these exchanges at quarter end are included.

The 100 worst performing stocks on the New York Stock Exchange, NYSE Amex, NYSE Arca and Nasdaq National Market, ranked by percentage change, for the fourth quarter of 2010. All issues trading below $2 at the beginning of the quarter are excluded; only stocks that were listed on these exchanges at quarter end are included.